#include "cache.h"
#include "diff.h"
-static const char *diff_files_usage =
-"diff-files [-p] [-q] [-r] [-z] [paths...]";
+static const char diff_files_usage[] =
+"git-diff-files [-q] [-0/-1/2/3 |-c|--cc] [<common diff options>] [<path>...]"
+COMMON_DIFF_OPTIONS_HELP;
-static int generate_patch = 0;
-static int line_termination = '\n';
+static struct diff_options diff_options;
static int silent = 0;
-
-static int matches_pathspec(struct cache_entry *ce, char **spec, int cnt)
-{
- int i;
- int namelen = ce_namelen(ce);
- for (i = 0; i < cnt; i++) {
- int speclen = strlen(spec[i]);
- if (! strncmp(spec[i], ce->name, speclen) &&
- speclen <= namelen &&
- (ce->name[speclen] == 0 ||
- ce->name[speclen] == '/'))
- return 1;
- }
- return 0;
-}
+static int diff_unmerged_stage = 2;
+static int combine_merges = 0;
+static int dense_combined_merges = 0;
static void show_unmerge(const char *path)
{
- if (generate_patch)
- diff_unmerge(path);
- else
- printf("U %s%c", path, line_termination);
+ diff_unmerge(&diff_options, path);
}
static void show_file(int pfx, struct cache_entry *ce)
{
- if (generate_patch)
- diff_addremove(pfx, ntohl(ce->ce_mode), ce->sha1,
- ce->name, NULL);
- else
- printf("%c%06o\t%s\t%s\t%s%c",
- pfx, ntohl(ce->ce_mode), "blob",
- sha1_to_hex(ce->sha1), ce->name, line_termination);
+ diff_addremove(&diff_options, pfx, ntohl(ce->ce_mode),
+ ce->sha1, ce->name, NULL);
}
static void show_modified(int oldmode, int mode,
- const char *old_sha1, const char *sha1,
+ const unsigned char *old_sha1, const unsigned char *sha1,
char *path)
{
- char old_sha1_hex[41];
- strcpy(old_sha1_hex, sha1_to_hex(old_sha1));
-
- if (generate_patch)
- diff_change(oldmode, mode, old_sha1, sha1, path, NULL);
- else
- printf("*%06o->%06o\tblob\t%s->%s\t%s%c",
- oldmode, mode, old_sha1_hex, sha1_to_hex(sha1), path,
- line_termination);
+ diff_change(&diff_options, oldmode, mode, old_sha1, sha1, path, NULL);
}
-int main(int argc, char **argv)
+int main(int argc, const char **argv)
{
- static const char null_sha1[20] = { 0, };
- int entries = read_cache();
- int i;
+ const char **pathspec;
+ const char *prefix = setup_git_directory();
+ int entries, i;
+ git_config(git_diff_config);
+ diff_setup(&diff_options);
while (1 < argc && argv[1][0] == '-') {
- if (!strcmp(argv[1], "-p"))
- generate_patch = 1;
+ if (!strcmp(argv[1], "--")) {
+ argv++;
+ argc--;
+ break;
+ }
+ if (!strcmp(argv[1], "-0"))
+ diff_unmerged_stage = 0;
+ else if (!strcmp(argv[1], "-1"))
+ diff_unmerged_stage = 1;
+ else if (!strcmp(argv[1], "-2"))
+ diff_unmerged_stage = 2;
+ else if (!strcmp(argv[1], "-3"))
+ diff_unmerged_stage = 3;
+ else if (!strcmp(argv[1], "--base"))
+ diff_unmerged_stage = 1;
+ else if (!strcmp(argv[1], "--ours"))
+ diff_unmerged_stage = 2;
+ else if (!strcmp(argv[1], "--theirs"))
+ diff_unmerged_stage = 3;
else if (!strcmp(argv[1], "-q"))
silent = 1;
else if (!strcmp(argv[1], "-r"))
; /* no-op */
else if (!strcmp(argv[1], "-s"))
; /* no-op */
- else if (!strcmp(argv[1], "-z"))
- line_termination = 0;
- else
- usage(diff_files_usage);
+ else if (!strcmp(argv[1], "-c"))
+ combine_merges = 1;
+ else if (!strcmp(argv[1], "--cc"))
+ dense_combined_merges = combine_merges = 1;
+ else {
+ int diff_opt_cnt;
+ diff_opt_cnt = diff_opt_parse(&diff_options,
+ argv+1, argc-1);
+ if (diff_opt_cnt < 0)
+ usage(diff_files_usage);
+ else if (diff_opt_cnt) {
+ argv += diff_opt_cnt;
+ argc -= diff_opt_cnt;
+ continue;
+ }
+ else
+ usage(diff_files_usage);
+ }
argv++; argc--;
}
+ if (combine_merges) {
+ diff_options.output_format = DIFF_FORMAT_PATCH;
+ }
+
+ /* Find the directory, and set up the pathspec */
+ pathspec = get_pathspec(prefix, argv + 1);
+ entries = read_cache();
+
+ if (diff_setup_done(&diff_options) < 0)
+ usage(diff_files_usage);
/* At this point, if argc == 1, then we are doing everything.
* Otherwise argv[1] .. argv[argc-1] have the explicit paths.
for (i = 0; i < entries; i++) {
struct stat st;
- unsigned int oldmode, mode;
+ unsigned int oldmode, newmode;
struct cache_entry *ce = active_cache[i];
int changed;
- if (1 < argc &&
- ! matches_pathspec(ce, argv+1, argc-1))
+ if (!ce_path_match(ce, pathspec))
continue;
if (ce_stage(ce)) {
- show_unmerge(ce->name);
- while (i < entries &&
- !strcmp(ce->name, active_cache[i]->name))
+ struct {
+ struct combine_diff_path p;
+ unsigned char fill[4][20];
+ } combine;
+
+ combine.p.next = NULL;
+ combine.p.len = ce_namelen(ce);
+ combine.p.path = xmalloc(combine.p.len + 1);
+ memcpy(combine.p.path, ce->name, combine.p.len);
+ combine.p.path[combine.p.len] = 0;
+ memset(combine.p.sha1, 0, 100);
+
+ while (i < entries) {
+ struct cache_entry *nce = active_cache[i];
+ int stage;
+
+ if (strcmp(ce->name, nce->name))
+ break;
+
+ /* Stage #2 (ours) is the first parent,
+ * stage #3 (theirs) is the second.
+ */
+ stage = ce_stage(nce);
+ if (2 <= stage)
+ memcpy(combine.p.parent_sha1[stage-2],
+ nce->sha1, 20);
+
+ /* diff against the proper unmerged stage */
+ if (stage == diff_unmerged_stage)
+ ce = nce;
i++;
- i--; /* compensate for loop control increments */
- continue;
+ }
+ /*
+ * Compensate for loop update
+ */
+ i--;
+
+ if (combine_merges) {
+ show_combined_diff(&combine.p, 2,
+ dense_combined_merges,
+ NULL, 0);
+ continue;
+ }
+
+ /*
+ * Show the diff for the 'ce' if we found the one
+ * from the desired stage.
+ */
+ show_unmerge(ce->name);
+ if (ce_stage(ce) != diff_unmerged_stage)
+ continue;
}
-
+
if (lstat(ce->name, &st) < 0) {
- if (errno != ENOENT) {
+ if (errno != ENOENT && errno != ENOTDIR) {
perror(ce->name);
continue;
- }
+ }
if (silent)
continue;
show_file('-', ce);
continue;
}
- changed = cache_match_stat(ce, &st);
- if (!changed)
+ changed = ce_match_stat(ce, &st);
+ if (!changed && !diff_options.find_copies_harder)
continue;
-
oldmode = ntohl(ce->ce_mode);
- mode = S_IFREG | ce_permissions(st.st_mode);
- show_modified(oldmode, mode, ce->sha1, null_sha1,
+ newmode = DIFF_FILE_CANON_MODE(st.st_mode);
+ if (!trust_executable_bit &&
+ S_ISREG(newmode) && S_ISREG(oldmode) &&
+ ((newmode ^ oldmode) == 0111))
+ newmode = oldmode;
+ show_modified(oldmode, newmode,
+ ce->sha1, (changed ? null_sha1 : ce->sha1),
ce->name);
}
+ diffcore_std(&diff_options);
+ diff_flush(&diff_options);
return 0;
}